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Posted to common-issues@hadoop.apache.org by "Zsolt Venczel (JIRA)" <ji...@apache.org> on 2018/07/12 13:49:00 UTC
[jira] [Assigned] (HADOOP-15452) Snappy Decpmpressor met
ArrayIndexOutOfBoundsException when reduce task fetch map output data
[ https://issues.apache.org/jira/browse/HADOOP-15452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zsolt Venczel reassigned HADOOP-15452:
--------------------------------------
Assignee: Zsolt Venczel
> Snappy Decpmpressor met ArrayIndexOutOfBoundsException when reduce task fetch map output data
> ---------------------------------------------------------------------------------------------
>
> Key: HADOOP-15452
> URL: https://issues.apache.org/jira/browse/HADOOP-15452
> Project: Hadoop Common
> Issue Type: Bug
> Components: common
> Affects Versions: 2.6.0
> Environment: hadoop -2.6.0-cdh5.4.4
> Reporter: jincheng
> Assignee: Zsolt Venczel
> Priority: Major
>
> RT, when reducers tasks fetch data from mapper tasks, it met ArrayIndexOutOfBoundsException, here is stackTrace:
> {code:java}
> org.apache.hadoop.mapred.YarnChild: Exception running child : org.apache.hadoop.mapreduce.task.reduce.Shuffle$ShuffleError: error in shuffle in fetcher#1
> at org.apache.hadoop.mapreduce.task.reduce.Shuffle.run(Shuffle.java:134)
> at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:379)
> at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:165)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1671)
> at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:160)
> Caused by: java.lang.ArrayIndexOutOfBoundsException
> at org.apache.hadoop.io.compress.snappy.SnappyDecompressor.setInput(SnappyDecompressor.java:111)
> at org.apache.hadoop.io.compress.BlockDecompressorStream.decompress(BlockDecompressorStream.java:104)
> at org.apache.hadoop.io.compress.DecompressorStream.read(DecompressorStream.java:85)
> at org.apache.hadoop.io.IOUtils.readFully(IOUtils.java:199)
> at org.apache.hadoop.mapreduce.task.reduce.InMemoryMapOutput.shuffle(InMemoryMapOutput.java:98)
> at org.apache.hadoop.mapreduce.task.reduce.Fetcher.copyMapOutput(Fetcher.java:549)
> at org.apache.hadoop.mapreduce.task.reduce.Fetcher.copyFromHost(Fetcher.java:346)
> at org.apache.hadoop.mapreduce.task.reduce.Fetcher.run(Fetcher.java:202)
> {code}
>
> Anyone has ideas?
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